472,212
472,212 is a composite number, even.
472,212 (four hundred seventy-two thousand two hundred twelve) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 13 × 1,009. Its proper divisors sum to 814,528, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x73494.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 224
- Digital root
- 9
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 212,274
- Square (n²)
- 222,984,172,944
- Cube (n³)
- 105,295,802,274,232,128
- Divisor count
- 36
- σ(n) — sum of divisors
- 1,286,740
- φ(n) — Euler's totient
- 145,152
- Sum of prime factors
- 1,032
Primality
Prime factorization: 2 2 × 3 2 × 13 × 1009
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√472,212 = [687; (5, 1, 1, 1, 8, 1, 8, 1, 2, 1, 1, 85, 3, 11, 38, 11, 3, 85, 1, 1, 2, 1, 8, 1, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- four hundred seventy-two thousand two hundred twelve
- Ordinal
- 472212th
- Binary
- 1110011010010010100
- Octal
- 1632224
- Hexadecimal
- 0x73494
- Base64
- BzSU
- One's complement
- 4,294,495,083 (32-bit)
- Scientific notation
- 4.72212 × 10⁵
- As a duration
- 472,212 s = 5 days, 11 hours, 10 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹 𒌋 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵υοβσιβʹ
- Chinese
- 四十七萬二千二百一十二
- Chinese (financial)
- 肆拾柒萬貳仟貳佰壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472212, here are decompositions:
- 19 + 472193 = 472212
- 23 + 472189 = 472212
- 53 + 472159 = 472212
- 61 + 472151 = 472212
- 73 + 472139 = 472212
- 79 + 472133 = 472212
- 89 + 472123 = 472212
- 101 + 472111 = 472212
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.52.148.
- Address
- 0.7.52.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.52.148
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 472,212 and was likely granted around 1891.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 472212 first appears in π at position 580,084 of the decimal expansion (the 580,084ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.